diff --git a/Rx.NET/Source/src/System.Reactive/Disposables/SingleAssignmentDisposableValue.cs b/Rx.NET/Source/src/System.Reactive/Disposables/SingleAssignmentDisposableValue.cs
index ff0dbc4ef2..be834e3cfa 100644
--- a/Rx.NET/Source/src/System.Reactive/Disposables/SingleAssignmentDisposableValue.cs
+++ b/Rx.NET/Source/src/System.Reactive/Disposables/SingleAssignmentDisposableValue.cs
@@ -10,7 +10,7 @@ namespace System.Reactive.Disposables
     /// Represents a disposable resource which only allows a single assignment of its underlying disposable resource.
     /// If an underlying disposable resource has already been set, future attempts to set the underlying disposable resource will throw an <see cref="InvalidOperationException"/>.
     /// </summary>
-    internal struct SingleAssignmentDisposableValue
+    public struct SingleAssignmentDisposableValue
     {
         private IDisposable? _current;
 
diff --git a/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/Api/ApiApprovalTests.Core.verified.cs b/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/Api/ApiApprovalTests.Core.verified.cs
index 0cb5836964..557e89f7cd 100644
--- a/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/Api/ApiApprovalTests.Core.verified.cs
+++ b/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/Api/ApiApprovalTests.Core.verified.cs
@@ -635,6 +635,12 @@ public SingleAssignmentDisposable() { }
         public bool IsDisposed { get; }
         public void Dispose() { }
     }
+    public struct SingleAssignmentDisposableValue
+    {
+        public System.IDisposable? Disposable { get; set; }
+        public bool IsDisposed { get; }
+        public void Dispose() { }
+    }
     public abstract class StableCompositeDisposable : System.IDisposable, System.Reactive.Disposables.ICancelable
     {
         protected StableCompositeDisposable() { }
@@ -3152,4 +3158,4 @@ public void Start<TStateMachine>(ref TStateMachine stateMachine)
             where TStateMachine : System.Runtime.CompilerServices.IAsyncStateMachine { }
         public static System.Runtime.CompilerServices.TaskObservableMethodBuilder<T> Create() { }
     }
-}
\ No newline at end of file
+}